# DSP vs dud

> English confusable word pair

## The two words

### DSP
*noun · frequency rank #31,149*
Initialism of digital signal processor.

### dud
*noun · IPA /dʌd/ · frequency rank #29,251*
A device or machine that is useless because it does not work properly or has failed to work, such as a bomb, or explosive projectile.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/dsp-vs-dud